Technology of Electrical Automatic

AFR-S Arc Flash Protection System

AFR-S Arc Flash Protection System

AFR-S arc flash protection system is a cost-effective solution that reduces arc-fault damage in low-voltage (LV) or medium-voltage (MV) feeder loops. Three remote ultraviolet optical sensors can be connected to one device, and can automatically detect the light from an arc flash and rapidly tripping.

This arc flash protection system is used to limit damages to equipment, improve safety, avoid and protect personnel injuries. It can be used as a stand-alone arc protection relay or applied in more complex switchgear layouts.

Category:

AFR-S arc flash protection system is a cost-effective solution that reduces arc-fault damage in low-voltage (LV) or medium-voltage (MV) feeder loops. Three remote ultraviolet optical sensors can be connected to one device, and can automatically detect the light from an arc flash and rapidly tripping.

This arc flash protection system is used to limit damages to equipment, improve safety, avoid and protect personnel injuries. It can be used as a stand-alone arc protection relay or applied in more complex switchgear layouts.

Category:

AFR-S Arc Flash Protection System Features

  • Panel mounting design.
  • 3-phase current and earth-fault current measurement.
  • Informative display on LCD screen.
  • Less than 10 ms operation time (including the output relay).
  • Multiple passive DI point, indicate CB status.
  • Multiple trip contacts, free to configuration NC / NO status.
  • Programmable CB protect trip logic.
  • Optional extra monitor functions by RS-485 connection, user can customized.
  • Support OEM and add customized program for VCB control and protection logic.

Specification

 

AFR-S AFR-M12 AFR-M24 AFR-M36 AFR-M48
Basic parameter
Power supply 85~265Vac/dc, optional 48Vdc
Consumption Monitoring stanby <5W
DO trigged <10W
Monitoring stanby <8W
DO trigged <10W
Rated current (In) 5A or 1A
Protection range 0~20 In
Burden 0.5VA
Protect current accuracy <2%
Protect frequence accuracy 0.1Hz
Arc signal & control
Sensor type lenspoint fiber optic sensors(1) or bare fiber optic sensors(2)
Arc sensor access channels 3 12 24 36 48
DO relay channels 6 4 4 9 9
Trip coil contact AC250V/8A fast relay, passive node
Trip operation time <10ms @ only arc protection
<20ms @ overcurrent + arc protection
Safty isolation 2500V isolation capacitry
Binary inputs 5 12 12 16 16
Others
Comm prot  RS485 MODBUS-RTU 1*  RS485 MODBUS-RTU
1* 10/100M Adaptive
Default 192.168.12.2/192.168.13.2
IEC-60870-5-103
SOE record 512 512 512 512 512
Waveform capture / 8 8 8 8
Optional modules Wireless joints temperature monitor
Smoke detector

Typical application

Device dimension and rear terminal introduction:

Downloads

Brochure of Arc Flash Protection Relay